Hopkins, A., & Potter, J. (1996). Look ahead 1 classroom course: Students` book (1a. ed. 7a. reimp.). Longman.
Chicago-čujuhus (17. p.)Hopkins, Andy, juo Jocelyn Potter. Look Ahead 1 Classroom Course: Students` Book. 1a. ed. 7a. reimp. Madrid: Longman, 1996.
MLA-čujuhus (9. p.)Hopkins, Andy, juo Jocelyn Potter. Look Ahead 1 Classroom Course: Students` Book. 1a. ed. 7a. reimp. Longman, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.